Write the arabic expression for the sum of 3 coins and c coins

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

Neoli is a nurse who works each day from 8: 00 am to 4: 00 pm at the blood collection centre. she takes 45 minutes for her lunch break. on average, it takes neoli 15 minutes to collect each sample and record the patient's details. on average, how many patients can neoli see each day?